<template>
	<view class="page-body">
		<!-- 页面内容开始 -->

		<!-- 表格搜索组件开始 -->
		<vk-data-table-query v-model="queryForm1.formData" :columns="queryForm1.columns" @search="search">
		</vk-data-table-query>
		<!-- 表格搜索组件结束 -->

		<!-- 自定义按钮区域开始 -->
		<view>
			<el-row style="padding-top: 10px;">
				<el-button type="success" size="small" icon="el-icon-circle-plus-outline" @click="addBtn">添加</el-button>
				<el-button size="small" icon="el-icon-download" @click="downloadModal">下载题目导入模板</el-button>
			</el-row>
		</view>
		<!-- 自定义按钮区域结束 -->

		<!-- 表格组件开始 -->
		<vk-data-table ref="table1" :action="table1.action" :columns="table1.columns" :query-form-param="queryForm1"
			:right-btns="['detail_auto','update','delete']" :custom-right-btns="cusBtns" :pagination="true"
			@custom-right-btns="customRightBtns" :selection="true" :row-no="true" @update="updateBtn"
			@delete="deleteBtn" @current-change="currentChange" @selection-change="selectionChange">
		</vk-data-table>
		<!-- 表格组件结束 -->

		<!-- 添加或编辑的弹窗开始 -->
		<vk-data-dialog v-model="form1.props.show" :title="form1.props.title" width="500px" mode="form"
			:close-on-click-modal="false">
			<vk-data-form v-model="form1.data" :rules="form1.props.rules" :action="form1.props.action"
				:form-type="form1.props.formType" :columns='form1.props.columns' label-width="80px"
				@success="form1.props.show = false;refresh();"></vk-data-form>
		</vk-data-dialog>
		<!-- 添加或编辑的弹窗结束 -->

		<!-- 页面内容结束 -->
	</view>
</template>

<script>
	var that; // 当前页面对象
	var vk = uni.vk; // vk实例
	var originalForms = {}; // 表单初始化数据
	var hasInit = false

	function urlTobase64(url, callback) {
		uni.request({
			url: url,
			method: 'GET',
			responseType: 'arraybuffer',
			success: res => {
				let base64 = uni.arrayBufferToBase64(res.data); //把arraybuffer转成base64
				callback(base64);
			}
		});
	}

	export default {
		props: ["cid"],
		data() {
			// 页面数据变量
			return {
				title: 'Hello',

				cusBtns: [
					{ title: '导入题目', type: 'success', icon: 'el-icon-edit' }
				],
				gridData: [],
				// 页面是否请求中或加载中
				loading: false,
				// init请求返回的数据
				data: {

				},
				// 表格相关开始 -----------------------------------------------------------
				table1: {
					// 表格数据请求地址
					action: "admin/q_bank/bank_chapter/sys/getList",
					// 表格字段显示规则
					columns: [
						{ key: "_id", title: "章节ID", type: "text", width: 160 },
						{ key: "title", title: "章节名", type: "text", width: 310 },
						{ key: "sort", title: "排序", type: "text", width: 100, sortable: "custom" },
						{ key: "_add_time", title: "添加时间", type: "time", width: 160, sortable: "custom" },
						{ key: "_add_time", title: "距离现在", type: "dateDiff", width: 100 },
					],
					// 多选框选中的值
					multipleSelection: [],
					// 当前高亮的记录
					selectItem: ""
				},
				// 表格相关结束 -----------------------------------------------------------
				// 表单相关开始 -----------------------------------------------------------
				// 查询表单请求数据
				queryForm1: {
					// 查询表单数据源，可在此设置默认值
					formData: {},
					// 查询表单的字段规则 fieldName:指定数据库字段名,不填默认等于key
					columns: [
						{ key: "bank_id", title: "所属题库", type: "text", width: 160, mode: "=", hidden: true },
						{ key: "title", title: "章节名", type: "text", width: 160, mode: "%%" },
						{ key: "create_date", title: "添加时间", type: "datetimerange", width: 400, mode: "[]" },
					]
				},
				form1: {
					"data": {
						"bank_id": null,
						"sort": 10
					},
					"props": {
						"action": "",
						"columns": [{
							"key": "bank_id",
							"title": "所属题库",
							"type": "text",
							"placeholder": "请输入题库id",
							"clearable": true,
							"showLabel": true,
							"disabled": true
						}, {
							"key": "title",
							"title": "章节名称",
							"type": "text",
							"placeholder": "请输入章节名称",
							"clearable": true,
							"showLabel": true
						}, {
							"key": "parent_id",
							"title": "父级",
							"type": "remote-select",
							"placeholder": "请选择父级",
							"action": "admin/q_bank/bank_chapter/sys/chapters",
							"actionData": { cid: this.cid, parent_id: true },
							"props": { list: "rows", value: "_id", label: "title" },
							"showAll": true,
							"dataPreprocess": function(list) {
								list.unshift({ value: null, title: "顶级章节" })
								return list;
							},
							"onChange": (val, formData, column, index, option) => {
								if (this.form1.data._id && this.form1.data._id == this.form1.data.parent_id) {
									this.$message({ message: '不能选择自己哦~', type: 'warning' })
									this.form1.data.parent_id = undefined
								}
							}
						}, {
							"key": "sort",
							"title": "排序",
							"type": "number",
							"placeholder": "排序",
							"showLabel": true,
							"controls": true,
							"precision": 0,
							"step": 1,
							"min": 0,
							"tips": "升序排序"
						}],
						"rules": {
							"bank_id": [{
								"required": true,
								"message": "所属题库不能为空",
								"trigger": "change"
							}],
							"title": [{
								"required": true,
								"message": "分类名称不能为空",
								"trigger": "change"
							}],
							"sort": [{
								"required": true,
								"message": "排序不能为空",
								"trigger": "change"
							}]
						},
						"formType": "",
						"show": false,
						"loading": false
					}
				},
				// 其他弹窗表单
				formDatas: {},
				// 表单相关结束 -----------------------------------------------------------
			};
		},
		// 监听 - 页面每次【加载时】执行(如：前进)
		onLoad(options = {}) {
			if (hasInit)
				return
			that = this;
			vk = that.vk;
			that.options = options;
			that.init(options);
		},
		created(options = {}) {
			if (hasInit)
				return
			that = this;
			vk = that.vk;
			that.queryForm1.formData['aid'] = that.cid
			that.form1.data['aid'] = that.cid
			that.options = options;
			that.init(options);
		},
		// 监听 - 页面【首次渲染完成时】执行。注意如果渲染速度快，会在页面进入动画完成前触发
		onReady() {},
		// 监听 - 页面每次【显示时】执行(如：前进和返回) (页面每次出现在屏幕上都触发，包括从下级页面点返回露出当前页面)
		onShow() {},
		// 监听 - 页面每次【隐藏时】执行(如：返回)
		onHide() {},
		// 函数
		methods: {
			// 页面数据初始化函数
			init(options) {
				originalForms["form1"] = vk.pubfn.copyObject(that.form1);
			},
			// 页面跳转
			pageTo(path) {
				vk.navigateTo(path);
			},
			// 表单重置
			resetForm() {
				vk.pubfn.resetForm(originalForms, that);
			},
			// 搜索
			search() {
				that.$refs.table1.search();
			},
			// 刷新
			refresh() {
				that.$refs.table1.refresh();
			},
			// 获取当前选中的行的数据
			getCurrentRow() {
				return that.$refs.table1.getCurrentRow();
			},
			// 监听 - 行的选中高亮事件
			currentChange(val) {
				that.table1.selectItem = val;
			},
			// 当选择项发生变化时会触发该事件
			selectionChange(list) {
				that.table1.multipleSelection = list;
			},
			// 显示添加页面
			addBtn() {
				that.resetForm();
				that.form1.props.action = 'admin/q_bank/bank_chapter/sys/add';
				that.form1.props.formType = 'add';
				that.form1.props.title = '添加';
				that.form1.props.show = true;
			},
			// 显示修改页面
			updateBtn({ item }) {
				that.form1.props.action = 'admin/q_bank/bank_chapter/sys/update';
				that.form1.props.formType = 'update';
				that.form1.props.title = '编辑';
				that.form1.props.show = true;
				that.form1.data = item;
			},
			// 删除按钮
			deleteBtn({ item, deleteFn }) {
				deleteFn({
					action: "admin/q_bank/bank_chapter/sys/delete",
					data: {
						_id: item._id
					},
				});
			},
			customRightBtns(item, btn) {
				this.getData(item._id, item.bank_id)
			},
			//获取需要解析的excel文件
			getData(cid, bid) {
				uni.chooseFile({
					count: 1,
					extension: ['.xls', '.xlsx', '.csv'],
					success: res => {
						urlTobase64(res.tempFilePaths[0], base => {
							that.getRes(base, cid, bid)
						})
					}
				})
			},
			getRes(base, cid, bid) {
				uniCloud.callFunction({
					name: 'getExcelToJson',
					data: {
						data: base,
						sheetList: [{
							index: 0,
							keys: ['type', 'level', 'score', 'title', 'analysis', 'rights', 'contents'],
							keysIndex: 0,
							startIndex: 1,
							endIndex: 51
						}]
					}
				}).then(res => {
					vk.callFunction({
						url: 'admin/q_bank/bank_chapter/sys/addExcelList',
						title: '请求中...',
						data: { list: res.result.data, cid, bid, type: 0 },
						success: function(data) {
							that.$message({ message: '导入成功！', type: 'success' })
						}
					})
				})
			},
			// 下载模板
			downloadModal() {
				window.location.href = "https://7463-tcb-k0u9wigxhygf3vdfc9501-ce7297-1308187260.tcb.qcloud.la/题目导入模板.xls"
			}
		}
	};
</script>
<style lang="scss" scoped>
	.page-body {}
</style>
